Ratchet-wrench.



R. B. CHRlSTINE.

RATCHET WRENCH.

APPLICATION-FILED Nov. 10. I915.

1 1 99, 1 57. Patented Sept. 26, 1916.

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BATCHET WRENCH.

APPLICATION FILED NOV. I0. 1915.

'1 1 99, 1 57 Patented Sept. 26, 1916.

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ROBERT B. CHRISTINE, OF TOLEDO, QHIO.

RATCHET-VJ'RENCH.

Application filed. November 10, 1915.

To all whom it may concern:

Be it known that I, Bonner B. CHRISTINE, a citizen of the United States, residing at Toledo, in the county of Lucas, State of Ohio, have invented certain new and useful Improvements in Ratchet-\Vrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention is directed to improvements in ratchet wrenches, and has for its object to so construct a device of this character adapted to operate either to the right or left.

A further object of the invention is to provide a wrench of this type so constructed that the same can be used conveniently in small spaces.

A still further object of the invention is to provide a wrench of this type so constructed that the actuating pawls may be quickly engaged or disengaged according to the direction in which the wrench is operated.

With these and other objects in view, this invention resides in the novel features of construction, formation, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a side elevation of the device. Fig. 2 is an edge view. Fig. 3 is a side elevation taken opposite from that of Fig. 1. Fig. 4 is a sectional view on line 4% of Fig. 2. Fig. 5 is a sectional view on line 55 of Fig. 2. Fig. 6 is a similar view on line 6-6 of Fig. 1. Fig. 7 is a sectional view on line 7-7 of Fig. 1. Fig. 8 is a side elevation of the wrench, showing the same engaged with a preferred form of bit. Fig. 9 is a plan view of, the same. Fig. 10 is a sectional view on line 1010 of Fig. 8. Fig. 11 is a plan view of a modified form of bit engaged by the wrench. Fig. 12 is a side elevation of the same.

Referring to the drawing, 1 designates the handle having one of its ends formed with a head 2, which is provided with an extension 3, said extension terminating in a horizontal lip 4. The lip 4 is formed with a depending flange 5, the purpose of which will appear later.

A rotary collar 6 is provided, and has its Specification of Letters Patent.

.Patented sept. 26, 1916.

Serial No. 60,781.

periphery and one side face formed with ratchet teeth 7 and 8, respectively. The inner surface of the collar 6 is provided with a groove 9 which is adapted to slidably engage the flange 5, which in conjunction with the plate 10 holds same in place and permits it to rotate. The collar 6 is split so as to provide a section 11, which has one end hingedly connected to the adjacent end of the collar, as at 12. The other end of the section 11 is locked by the spring pressed bolt 11 to the other end of the collar. By providing the collar with the section 11, the same may be swung outwardly so that the flange 5 of the lip 4 may be engaged with the groove 9, after which the section 11 is locked. It will be of course understood that the section 11 is formed with a groove, and ratchet teeth, which are continuations of the ratchet teeth 7 and 8 and groove 9.

Fixed to one side of the collar 6 is a housing 12, which hasone end formed with a rigid jaw 13, and associated with the housing is a movable jaw 14, the shank of which slides in the housing and is provided with rack teeth 15, which mesh with the worm screw 16, which is rotatably mounted in the housing. The worm screw is provided with a knurled knob 17, by which the same is rotated to adjust the jaw 14 so that the wrench may be used with nuts of various sizes.

Spring pressed pawls 18 and 19 are pivotally connected to the head 2, the former having one end. adapted to engage the ratchet teeth 8, while the latter has one of its ends adapted to engage the teeth 7.

A band 20 rotatably encircles the handle 1, and has its interior surface formed with cams 21 and 22 which are adapted to suecessively engage the lower ends of the pawls 18 and 19 so that the upper end of the desired pawl will be lifted from engagement with the associated ratchet teeth, whereby the collar 6 may be rotated in the direction desired. The band 20 is further provided with an interior shoulder 22, which serves to hold the band spaced from the handle to permit the pawl engaged with its associated teeth to rock, while the other pawl. is disengaged from its coacting teeth owing to the fact that the lower end thereof is en aged by its associated cams.

From the foregolng description it will be e t a Wrench has been pr d h h is extremely simple in construction and one in which the parts may be easily and quickly assembled.

In Figs. 8 to 10 inclusive there is shown a preferred form of bit adapted to be used in connection with my Wrench forengaging nuts in places which are not accessible by the jaws 13 and 1-1, said bit consisting of a shank which has formed at one end a nut engaging socket 24. The shank is further provided with a rectangular body 25 said body having three of its sides pro-- vided with projections 26, two of which are adapted to engage the recesses 26 formed in the jaws l3 and let, while the remaining one engages the recess 27, in the housing 12. Thus it will be seen that the jaws 13 and let serve to clampingly engage the body 25 firmly, while the projections thereon prevent endwise movement of the shank. The body 25 is provided with a handle 28 whereby the operator can conveniently hold the bit during movement of the wrench.

In Figs. 11 and 12, a modified form of bit is illustrated which consists of a body 29 constructed in the same manner as the head 25, while the shank 30 carried thereby is provided With an open nut engaging j aw- 31. The handle 32 1s arranged at right upon the periphery and one side face of the collar and its section, and spring pressed pawls pivotally connected to the head, and means carried by the handle for actuating the pawls to alternately engage or disene gage the adjacent ratchet teeth.

In testimony whereof, I afiix my signature, in the presence of two witnesses.

ROBERT E. CHRISTINE.

Witnesses JAMES J FLooD, KATE A. FLOOD.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

